/Engine/Source/Editor/SequencerCore/Public/MVVM/Selection/SequencerCoreSelectionTypes.h
Replace this selection set with the contents from another
void ReplaceWith ( [TUniqueFragmentSelectionSet](API\Editor\SequencerCore\MVVM\Selection\TUniqueFragmentSelectionSet)< KeyType, ModelType > && OtherSelection )